14+ Intertrigo Smelly Rash Under Breast Pics. A rash under your breast or breasts, between the folds of skin is usually caused by a skin condition called intertrigo. It comes from the same family of yeast infections that cause athletes foot, jock itch and nappy rash.

Common Rashes Found In The Armpits
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Intertrigo patients complain of redness, burning, and itching in the skin folds, most commonly in the groin, under the breast, and in the armpits. This condition usually occurs when the skin folds rub together causing friction and trapping moisture. If you've noticed an itchy rash between the folds of your skin, it could be intertrigo.

It may be smelly, if the fungal infestation is too much.

If you've noticed an itchy rash between the folds of your skin, it could be intertrigo. This rash may be mildly or very itchy. Intertrigo is a rash that usually affects the folds of the skin, where the skin rubs together or where it is often moist. Intertrigo is an infection caused by a yeast condition called candida.